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US 6,646,167 B2Granted
Method of manufacturing phenol by direct oxidation of benzene
AssigneePresident of Kobe University
InventorShigeru Tsuruya
Life of this patent
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Abstract
Benzene, ascorbic acid acting as a reducing agent, and a vanadium-supported alumina catalyst are placed in an aqueous solution of acetic acid used as a solvent, and the reaction is carried out under an oxygen gas atmosphere having a pressure of at least 0.3 MPa so as to directly oxidize benzene and, thus, to obtain phenol at a high yield of at least 8%.
Claims4
A method of manufacturing phenol, comprising the steps of:
- supplying benzene and an antioxidant of O2 into a continuous flow reactor loaded with a copper-supported H type ZSM-5 zeolite catalyst;
- and
- directly oxidizing benzene to produce phenol.
Dependencies are inferred from the claim text.